CH 6: Receptors
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Questions and Answers

What is the role of receptors in the body's response to environmental stimuli?

  • Detect changes in the external and internal environments (correct)
  • Initiate muscle contractions
  • Transmit signals to the brain
  • Process nerve impulses

    • Which of the following is an example of an effector in the body's response system?

  • Glands that secrete hormones (correct)
  • Axon
  • Cell body
  • Dendrites

    • What is the main function of neurons in the nervous system?

  • Process information in the receptors
  • Transmit nerve impulses (correct)
  • Convert stimuli into nerve impulses
  • Detect changes in the environment

    • What is the specialized structure in the eye that detects light and color?

    <p>Rods and cones</p> Signup and view all the answers

    How do effectors respond to impulses sent by the nervous system?

    <p>By contracting muscles or secreting substances</p> Signup and view all the answers

    Which part of the human nervous system is responsible for processing and interpreting sensory information?

    <p>Central nervous system</p> Signup and view all the answers

    Which nervous system division controls involuntary actions in the body?

    <p>Autonomic nervous system</p> Signup and view all the answers

    What type of responses are reflex actions?

    <p>Rapid and automatic</p> Signup and view all the answers

    During a reflex action, which part of the nervous system allows for a quick response without involving the brain?

    <p>Reflex arc</p> Signup and view all the answers

    What components are integral for the body's ability to respond to environmental changes?

    <p>Receptors, neurons, and effectors</p> Signup and view all the answers

    What is the main function of receptors in the body's response to environmental stimuli?

    <p>Detect changes in the external and internal environments</p> Signup and view all the answers

    Which component of a neuron receives signals from other neurons or receptors?

    <p>Dendrites</p> Signup and view all the answers

    What kind of stimuli can photoreceptors in the eye detect?

    <p>Light and color</p> Signup and view all the answers

    Which part of a neuron is responsible for transmitting the nerve impulse to other neurons or effectors?

    <p>Axon</p> Signup and view all the answers

    How do effectors respond to impulses sent by the nervous system?

    <p>Contract muscles or secrete substances</p> Signup and view all the answers

    What is the primary role of neurons in the nervous system?

    <p>Transmit nerve impulses</p> Signup and view all the answers

    Which of the following is an example of an effector in the body's response system?

    <p>Glands that secrete hormones</p> Signup and view all the answers

    Which division of the peripheral nervous system controls involuntary actions in the body?

    <p>Autonomic nervous system</p> Signup and view all the answers

    What type of response are reflex actions?

    <p>Rapid and automatic</p> Signup and view all the answers

    Which part of the human nervous system allows for a quick response in reflex actions but does not involve the brain?

    <p>Interneurons in the spinal cord</p> Signup and view all the answers

    What is the main function of effectors in the body's response to environmental changes?

    <p>Produce responses</p> Signup and view all the answers

    Which part of the nervous system is responsible for processing and interpreting sensory information?

    <p>Central nervous system</p> Signup and view all the answers

    What type of neurons activate the muscles to pull the hand away from a hot object during a reflex action?

    <p>Motor neurons</p> Signup and view all the answers

    Which part of the peripheral nervous system controls voluntary actions in the body?

    <p>Somatic nervous system</p> Signup and view all the answers

    What is the role of receptors in the body's response to environmental stimuli?

    <p>Detect stimuli</p> Signup and view all the answers

    What is the primary function of a receptor in the body's response to environmental stimuli?

    <p>Detect changes in the environment</p> Signup and view all the answers

    Which component of a neuron is responsible for receiving signals?

    <p>Dendrite</p> Signup and view all the answers

    What is the role of neurons in the nervous system?

    <p>Transmit signals to effectors</p> Signup and view all the answers

    In the nervous system, what is the function of effectors?

    <p>Respond to impulses sent by the nervous system</p> Signup and view all the answers

    What is the main function of photoreceptors in the eye?

    <p>Detect light and color</p> Signup and view all the answers

    Which part of a neuron transmits the nerve impulse to other neurons or effectors?

    <p>Axon</p> Signup and view all the answers

    What happens when a muscle cell (effector) receives an impulse from the nervous system?

    <p>Contracts, leading to movement</p> Signup and view all the answers

    What are the two main divisions of the human nervous system?

    <p>Central and Peripheral Nervous System</p> Signup and view all the answers

    Which part of the nervous system is responsible for controlling involuntary actions?

    <p>Autonomic Nervous System</p> Signup and view all the answers

    In a reflex arc, which component is responsible for processing and interpreting sensory information?

    <p>Interneurons</p> Signup and view all the answers

    What is the main function of effectors in the body's response to environmental changes?

    <p>Initiate Muscle Movements</p> Signup and view all the answers

    During a reflex action, which part of the nervous system bypasses the brain to allow for a quick response?

    <p>Reflex Arc</p> Signup and view all the answers

    Which structure is responsible for detecting light and color in the human body?

    <p>Photoreceptors in the Eye</p> Signup and view all the answers

    What is the role of neurons in maintaining homeostasis and protecting the body?

    <p>Processing Information</p> Signup and view all the answers

    Which type of neurons activate muscles during a reflex action to withdraw a hand from a hot object?

    <p>Motor Neurons</p> Signup and view all the answers

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